Device for measuring the tensioning of a strapping, method for measuring said tensioning and strapping machine using the aforesaid measuring device

A device for measuring a tensioning of a strap wound and strapped around at least one product or one object, comprising a frame that supports:

• a first head and a spaced apart second head facing each other, the first head and second head being configured to receive a strap that is looped externally about the first head and the second head in a ring configuration;
• a mover configured to displace at least one of the first head or the second head relative to the other;
• a load cell disposed between the first head or the second head and a contrasting surface of the frame, the load cell detecting information relating to a force applied to the strap when the strap is looped externally about the first head and the second head and when the mover displaces at least one of the first head or the second head relative to the other to deform the strap;
• a computer operatively connected to the load cell and comprising:
• memory in which a computer product is stored;
• and
• a microprocessor that is configured to execute the computer product,
• the computer product, when being executed by the microprocessor, being configured to use the information detected by the load cell to calculate a value of a tensile load on the strap and an elongation of the strap resulting from when the mover displaces at least one of the first head or the second head relative to the other to deform the strap.